CN103226091A - High temperature high pressure acoustic emission electrochemistry simulation experiment apparatus capable of loading stress - Google Patents
High temperature high pressure acoustic emission electrochemistry simulation experiment apparatus capable of loading stress Download PDFInfo
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- CN103226091A CN103226091A CN2013101260891A CN201310126089A CN103226091A CN 103226091 A CN103226091 A CN 103226091A CN 2013101260891 A CN2013101260891 A CN 2013101260891A CN 201310126089 A CN201310126089 A CN 201310126089A CN 103226091 A CN103226091 A CN 103226091A
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Abstract
The invention provides a high temperature high pressure acoustic emission electrochemistry simulation experiment apparatus capable of loading stress. The apparatus comprises: a pressure kettle, wherein the pressure kettle is provided with an inner cavity, and a specimen is arranged inside the inner cavity; stretching test systems installed on both ends of the specimen, wherein the tension test system stretches the specimen, tests and obtains tension and a strain signal of the specimen; a solution circulation inflation system connected with the inner cavity of the pressure kettle and provided for providing a solution required by an experiment for the pressure kettle; acoustic emission probes arranged on both ends of the specimen and provided for testing an acoustic signal of the specimen; an electrochemistry test system connected with the specimen and the pressure kettle, and provided for applying polarization current on the specimen to carry out polarization, testing and obtaining an electrochemistry signal; and a data collector for collecting the simultaneously measured strain signal, the electrochemistry signal and the acoustic emission signal. With the present invention, controllable pressurizing, controllable heating and controllable inflation can be performed, and an actual working condition of the on-site material is well simulated.
Description
Technical field
The present invention relates to technical field of nondestructive testing, be specifically related to a kind of High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress.
Background technology
The equipment installation prolonged application of industrial circles such as oil, petrochemical industry, nuclear industry, electric power is in high temperature, high pressure, many corrosive mediums environment, the galvanic corrosion of equipment installation and stress corrosion crack (SCC) are the main causes that causes damage, that the attenuate that is caused, perforation, crackle, break etc. may cause is poisonous, the leakage of high temperature, inflammable, explosive, radiation medium, and then cause accidents such as fire explosion, environmental pollution, casualties, property loss, the serious safety and production that threatens.
Electrochemical techniques are as the main means of corrosion research, and aspects such as through 200 years of development, formation mechanism, the monitoring at the burn into crackle detects, control protection form more complete system.And acoustic emission (AE) detection is to carry out defect location and quantitative a kind of Dynamic Non-Destruction Measurement according to the characteristics of Acoustic Emission of burn into crackle, because it can realize continuous, online, original position, harmless and fast detecting, obtaining widespread use aspect equipment installation corrosion and the crack detection in recent years.But since at present under actual condition the relation research of the relation of acoustic emission signal and galvanic corrosion speed and acoustic emission signal and electrochemical signals still not thorough, the characteristics of Acoustic Emission parameter is numerous in addition, when the characterization signal feature, lack unified standard, serious restriction acoustic emission the corrosion and crack monitoring in application.The corresponding relation of research acoustic emission signal and electrochemical corrosion course is the application foundation that acoustic emission can be monitored galvanic corrosion and stress corrosion crack process under actual high temperature, high pressure, stress, yet, also do not have high temperature, high pressure, stress to study the systematic study of the corresponding relation of acoustic emission signal and electrochemical corrosion course down at present.
Technology such as the electrode potential test in the known galvanochemistry, electrochemistry noise, electrochemical impedance, polarization curve have the theory of comparative maturity in monitoring and corrosion cracking phenomenons such as explaining uniform corrosion, spot corrosion, passivating film destruction, crackle sprouting, crack growth.But at present the relation of acoustic emission signal under actual production operating mode (high temperature, high pressure, stress) environment and galvanic corrosion speed and acoustic emission signal and electrochemical signals concern aspect the research comparatively deficient, seriously limited the application of acoustic emission in corrosion and crack monitoring, tracing it to its cause is to lack the experimental provision that can simulate the suffered high temperature of material under the actual condition, high pressure, stress corrosion environment and carry out acoustic emission detection and electro-chemical test simultaneously at present.
Summary of the invention
The invention provides a kind of High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress, to solve under the actual production operating mode (high temperature, high pressure, stress) problem of the relation between acoustic emission signal that can not obtain and the galvanic corrosion speed.
For this reason, the present invention proposes a kind of High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress, and the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of described energy loading stress comprises:
Autoclave pressure, described autoclave pressure has inner chamber, is provided with test specimen in the described inner chamber;
Stretching test system is installed in the two ends of described test specimen, and the pulling force and the strain signal of described test specimen are tested and obtained to the described test specimen that stretches;
Solution circulation gas charging system is connected with the inner chamber of described autoclave pressure, provides experiment required solution to described autoclave pressure;
The acoustic emission probe is arranged on described test specimen two ends, tests the acoustic signal of described test specimen;
The electro-chemical test system is connected with described autoclave pressure with test specimen, described test specimen is applied polarization current polarize and test and obtain electrochemical signals;
Data acquisition unit is gathered simultaneously-measured pulling force and strain signal, electrochemical signals and acoustic emission signal.
Further, the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of described energy loading stress also comprises: computer, be connected with data acquisition unit, and described computer is connected with described stretching test system, described computer is controlled the stretching of described stretching test system to described test specimen according to the pulling force and the strain signal that obtain.
Further, described autoclave pressure comprises: kettle and be arranged on kettle cover on the described kettle, described kettle cover is provided with the mounting hole that described test specimen is installed, described mounting hole is provided with the test specimen O-ring seal of the described kettle cover of sealing and is pressed on gland on the test specimen O-ring seal, described stretching test system comprises: the chuck at the described test specimen of clamping two ends, described chuck contacts with described test specimen by liner, and the liner of described kettle, described kettle cover, described gland, described test specimen O-ring seal and described chuck all adopts fiberglass.
Further, described acoustic emission probe contacts with the end face of test specimen by couplant.
Further, described stretching test system also comprises: motor is connected with described chuck; Servo controller connects described motor and described computer, and described computer is controlled described servo controller according to the pulling force and the strain signal that obtain, thus the start and stop and the rotating speed of control control motor, and control is to the stretching of described test specimen.
Further, described electro-chemical test system comprises: be connected working electrode, auxiliary electrode and the silver/silver chloride contrast electrode on the described autoclave pressure, described working electrode is described test specimen.
Further, the two ends of described test specimen are respectively equipped with the test specimen head that is threaded with described test specimen, and described test specimen headgear is located at the two ends of described test specimen, and described chuck is held described test specimen by the described test specimen head-clamp of clamping.
Further, described acoustic emission probe sheath is located in the plastic whorl circle and is installed on the described stretching test system.
Further, it is 20～150 ℃ that described solution circulation gas charging system provides the temperature of the required solution of experiment to described autoclave pressure, and pressure is 1～16MPa.
Further, described stretching test system also comprises: the gear pair that is connected with described motor, described stretching test system realizes that by the motion of described Electric Machine Control gear pair constant load, constant strain or the dynamic loading to described test specimen loads, to obtain the required stress condition of experiment.
The invention has the beneficial effects as follows:
1, the present invention can measure acoustic emission signal and electrochemical signals simultaneously, when corrosion and seminess when occurring, the acoustic emission signal of synchronous acquisition and electrochemical signals can compare research, extract in the acoustic emission signal and corresponding relevant feature parameters such as corrosion speed, corrosion type, crack growth, can advance the research of acoustic emission.
2, glass fiber reinforced plastics product is all adopted at the position that all and test specimen may come in contact among the present invention, under the prerequisite that guarantees required compressive resistance, utilize the good insulation properties of fiberglass, avoid test specimen and other metal parts to conduct the accuracy that influences the electro-chemical test data.
3, the present invention can carry out controlled supercharging, controlled heating, controllable inflation, better simulated on-the-spot material actual working state, can stretch to test specimen by driven by motor simultaneously, simulated field material actual stress situation, and device has anti-explosion function, and can effectively realize the harmless emission of liquids recovery and gas.
4, the design of test specimen and clamping device is practical, and the replacing test specimen only need unclamp chuck and tighten mechanism, mentions upper clamp and can change sample easily, by the standard specimen of processing, can guarantee the repeatability of experimental result.The test specimen two ends directly contact with high temperature acoustic emission probe by couplant simultaneously, have avoided the decay of acoustic emission signal by interface (screw thread or waveguide rod), and can utilize time difference line location technology location corrosion and crackle happening part.
5, the present invention can also measure in the process of acoustic emission signal and electrochemical signals at the same time, can loading stress, obtain the relation that loads with stress.In addition, the present invention can also measure under the situation of acoustic emission signal and electrochemical signals and loading at the same time, carries out the test under the high temperature and high pressure environment, obtains the parameter of various full tests simultaneously, and is very approaching with the working environment of refinery.
Description of drawings
Fig. 1 a is the main TV structure synoptic diagram according to the autoclave pressure of the embodiment of the invention;
Fig. 1 b is the sectional structure synoptic diagram according to the autoclave pressure of the embodiment of the invention, has wherein removed contrast electrode and tensimeter;
Fig. 1 c is the plan structure synoptic diagram according to the kettle cover of the autoclave pressure of the embodiment of the invention;
Fig. 2 is the main TV structure according to the test specimen of the embodiment of the invention;
Fig. 3 a is the main TV structure synoptic diagram according to the clamping device of the embodiment of the invention;
Fig. 3 b is the side-looking structural representation according to the clamping device of the embodiment of the invention;
Fig. 3 c is the plan structure synoptic diagram according to the clamping device of the embodiment of the invention;
Fig. 3 d is the A-A sectional structure synoptic diagram of the clamping device among Fig. 3 c, and wherein, for the ease of contrast, test specimen and test specimen head do not have cross-hatching;
Fig. 4 a is the plan structure synoptic diagram according to the second anchor clamps web joint of the embodiment of the invention;
Fig. 4 b is the main TV structure according to the stretching test system of the embodiment of the invention;
Fig. 5 shows one-piece construction and the principle of work according to the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of the loading stress of the embodiment of the invention.
The drawing reference numeral explanation:
1. kettle, 2. kettle cover, 3. fiberglass gland, 4. test specimen O-ring seal, 5. test specimen, 6. kettle cover sealing ring, 7. auxiliary electrode, 8.Ag/AgCl contrast electrode, 9. tensimeter, 10. inlet, 11. relief valve connection, 12. liquid outlet, 201. test specimen head, 301. probe plastic whorl circle, 302. chuck, 303. chuck liner, 304. chuck is tightened mechanism, 305. chuck hanger, 306. the first anchor clamps web joint, 307. acoustic emission probe, 401. the second anchor clamps web joint, 402. connecting screw rod, 403. displacement indicant, 404. pulling force sensor, 405. laser displacement sensor, 501. fluid reservoir, 502. drawing liquid pump, 503. well heater, 504. thermometer, 505. supercharge pump, 506. refrigeratory, 507. caustic treater, 508. gear pair, 509. motor, 510. servo controller, 511. data acquisition unit, 40. stretching test system, 408. pull bar, 600. computer
Embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.
As shown in Figure 5, according to the embodiment of the invention can loading stress High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation comprise:
Autoclave pressure, described autoclave pressure has inner chamber, be provided with test specimen 5 in the described inner chamber, autoclave pressure working strength height, corrosion-resistant, light weight, electrical isolation, the high temperature resistant glass fibre reinforced plastic that thermal conductivity is low, can use for a long time below 150 ℃, both can reach high voltage bearing requirement of strength, also can realize simultaneously the test specimen and the electrical isolation of web member on every side, ensure the accuracy of electro-chemical test.Kettle 1 uses flange to be connected with kettle cover 2, seals convenient indoor installation and removal by kettle cover sealing ring 6.At the bottom of the still and kettle cover have mounting hole, will test test specimen 5 and be installed in this hole site, two ends are provided with fiberglass gland 3 and test specimen O-ring seal 4 and realize sealing, test specimen two ends external threading is connected with test specimen head 201.Auxiliary electrode 7, Ag/AgCl contrast electrode 8, tensimeter 9, relief valve connection 11 are housed on the kettle cover 2, and liquid outlet 12 is equipped with inlet 10 on the kettle 1; Be provided with the feed liquor pipeline at the bottom of the still, kettle cover has return line, can realize suppressing;
Stretching test system 40, as Fig. 4 a and 4b, be installed in the two ends of described test specimen 5, stretching test bar 5, test and obtain the pulling force and the strain signal of described test specimen, stretching test system can comprise the tensile part of stretching action and the sensor of reflection pulling force and strain signal;
Solution circulation gas charging system is connected with the inner chamber of described autoclave pressure, provides experiment required solution to described autoclave pressure, to simulate various site environments, for example simulates the corrosion environment of refinery;
The electro-chemical test system, be connected with described autoclave pressure, described test specimen is applied polarization current to polarize and tests and obtain electrochemical signals, can carry out tests such as electrode potential, electrochemistry noise, electrochemical impedance, polarization curve, detect the electrochemical signals of corrosion cracking phenomenons such as uniform corrosion, spot corrosion, passivating film destruction, crackle sprouting, crack growth;
The present invention can measure acoustic emission signal and electrochemical signals simultaneously, when corrosion and seminess when occurring, the acoustic emission signal of synchronous acquisition and electrochemical signals can compare research, extract in the acoustic emission signal and corresponding relevant feature parameters such as corrosion speed, corrosion type, crack growth, can advance the research of acoustic emission.In addition, can also measure at the same time in the process of acoustic emission signal and electrochemical signals, can loading stress, obtain the relation that loads with stress.
Further, as Fig. 5, the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of described energy loading stress also comprises: computer 600, be connected with data acquisition unit 511, and described computer 600 is connected with described stretching test system, described computer 600 is controlled the stretching of described stretching test system to described test specimen according to pulling force and strain signal that data acquisition unit 511 obtains.Can in acoustic emission test and electro-chemical test, carry out load test to test specimen flexibly, to obtain more test parameters according to site environment.
Further, as Fig. 1 a, Fig. 1 b and Fig. 1 c, described autoclave pressure comprises: kettle 1 and be arranged on kettle cover 2 on the described kettle 1, kettle 1 has ringent inner chamber, and described kettle cover 2 covers on opening, and kettle cover 2 is provided with the mounting hole (not shown) that described test specimen is installed, described mounting hole is provided with the test specimen O-ring seal 4 of the described kettle cover of sealing, and be pressed on gland 3 on the test specimen O-ring seal 4, after realizing that test specimen 5 has been installed, autoclave pressure can keep sealing.Described stretching test system comprises: the chuck 302 at the described test specimen of clamping two ends, described chuck contacts with described test specimen 5 by liner 303, and the liner of described kettle 1, described kettle cover 2, described gland 3, described test specimen O-ring seal 4 and described chuck 302 all adopts fiberglass.Under the prerequisite that guarantees required compressive resistance, utilize the good insulation properties of fiberglass, avoid test specimen and other metal parts to conduct the accuracy that influences the electro-chemical test data.
Further, described acoustic emission probe contacts with the end face of test specimen by couplant, couplant is a petroleum jelly cream for example, has avoided the decay of acoustic emission signal by interface (screw thread or waveguide rod), and can utilize time difference line location technology location corrosion and crackle happening part.
Further, as Fig. 5, described stretching test system also comprises: motor 509 is connected with described chuck by gearing; Servo controller 510, connect described motor 509 and described computer 600, described computer is according to the pulling force and the strain signal that obtain, control described servo controller 510, thereby the start and stop and the rotating speed of control control motor 509, control is to the stretching or the loading of described test specimen, and that can realize loading is flexible.
Further, shown in Fig. 1 a, Fig. 1 b and Fig. 1 c, described electro-chemical test system comprises: be connected working electrode, auxiliary electrode 7 and the silver/silver chloride contrast electrode 8 (the Ag/AgCl contrast electrode is fit to High Temperature High Pressure) on the kettle cover 2 of described autoclave pressure, described working electrode is described test specimen 5.Can effectively carry out tests such as electrode potential, electrochemistry noise, electrochemical impedance, polarization curve like this, detect the electrochemical signals of corrosion cracking phenomenons such as uniform corrosion, spot corrosion, passivating film destruction, crackle sprouting, crack growth.
Further, as Fig. 2, the two ends of described test specimen 5 are respectively equipped with the test specimen head 201 that is threaded with described test specimen, test specimen head 201 for example is a nut, described test specimen head 201 is set in the two ends of described test specimen, and as Fig. 3 d, described chuck 302 is by the described test specimen of described test specimen head 201 clampings of clamping.Test specimen 5 can be standard component, can guarantee the repeatability of experimental result.The replacing test specimen only need unclamp chuck and tighten mechanism, mentions upper clamp and can change easily.
Further, as Fig. 3 d, described acoustic emission probe 307 (calibrate AE sensors) are set in the plastic whorl circle 301 and are installed on the described stretching test system, and for example, as Fig. 3 a and Fig. 3 b, plastic whorl circle 301 is installed on the first anchor clamps web joint 306.The acoustic signal that acoustic emission probe 307 can be tested corrosion cracking extracts characteristic parameter, and can utilize time difference line location technology location corrosion and crackle happening part.The first anchor clamps web joint 306 connects chuck 302 by chuck hanger 305, and chuck hanger 305 can be bolt, plays the effect of switching.
Further, it is normal temperature～150 ℃ that described solution circulation gas charging system provides the temperature of the required solution of experiment to described autoclave pressure, and pressure is normal pressure～16MPa.Solution circulation gas charging system is pumped to liquid in the fluid reservoir 501 in autoclave or the autoclave pressure 1 by drawing liquid pump 502, and middle process has well heater 503 heating of thermometer 504 thermometrics and temperature control with simulation actual condition medium temperature.Behind autoclave pressure 1 full of liquid, can be back to fluid reservoir 501 by reflux pipeline, close fluid reservoir valve and return valve, suppress by supercharge pump 505, show and controlled pressure still internal pressure level according to tensimeter 9, reach required pressure and just stop supercharge pump,, pressure condition temperature required automatically to obtain.Experimental solutions (testing required solution) is back to fluid reservoir 501 after refrigeratory 506 coolings, realize liquids recovery.Gas (as: nitrogen, oxygen, sulfuretted hydrogen, carbon dioxide etc.) is under steel cylinder air pressure, through the self-contained pressure regulator decompression, after solution realization deoxygenation or inflation in the fluid reservoir 501, through directly emptying behind caustic treater 507 flush away sulfuretted hydrogen, the carbon dioxide.Fluid reservoir, autoclave, caustic treater are all established safety valve in the solution circulation gas charging system, realize overpressure protection.Establish the heating-up temperature of automatic measurement of thermometer and control heater in the solution circulation gas charging system, guarantee that experimental temperature is accurate, autoclave is established automatic gaging pressure of tensimeter and the start and stop of control supercharge pump, guarantees that experimental pressure is accurate.
Further, as Fig. 5, described stretching test system also comprises: the gear pair 508 (being also referred to as gear set) that is connected with described motor 509, described stretching test system is by the motion of described motor 509 control gear pairs 508, realization loads constant load, constant strain or the dynamic loading of described test specimen, to obtain the required stress condition of experiment.
Stretching test system passes through two chuck 302 clamping test pieces 5 up and down.There is the insulation of chuck liner (fiberglass material) 303 with realization and test specimen and other metal chuck 302 inside, chuck 302 clamping test pieces 201, after tightening mechanism 304 (chuck tighten mechanism 304 can comprise tight a bolt and be set in spring on the bolt) locking by chuck again, chuck 302 connects the first anchor clamps web joint 306 by chuck hanger 305.The calibrate AE sensor 307 that plastic whorl circle 301 is equipped with in the outside screws in the first anchor clamps web joints 306 and by couplant and test specimen two end in contact, the second anchor clamps web joint 401 is connected with the first anchor clamps web joint 306 by connecting screw rod 402, forms to change anchor clamps fast.The second anchor clamps web joint 401 and the first anchor clamps web joint 306 can be connected on the cupping machine or pull bar 408.
Pulling force sensor 404 and displacement indicant 403 (for example being pointer or other indicants) are equipped with in the second anchor clamps web joint, 401 tops.Pulling force sensor 404 is arranged on the second anchor clamps web joint 401, measure the size of the suffered tensile force of test specimen, laser displacement sensor 405 and displacement target thing 403 can be measured the strain size that test specimen takes place simultaneously, and are connected with computer by data acquisition unit 511 and carry out record.Can carry out stretching experiment by the test specimen clamping device, the replacing test specimen only need unclamp chuck and tighten mechanism 304, unloads test specimen head 201 and can change test specimen easily.
The present invention can realize the simulation of material applying working condition environment and stress condition, and be convenient to the carrying out of various acoustic emission signals and electrochemical signals observed synchronously, but satisfy laboratory experiment teaching demand and controlled repeated experiments requirement, theoretical and method research provides experiment porch for the acoustic emission Electrochemical Detection.
The above only is the schematic embodiment of the present invention, is not in order to limit scope of the present invention.For each ingredient of the present invention can make up under the condition of not conflicting mutually, any those skilled in the art, equivalent variations of having done under the prerequisite that does not break away from design of the present invention and principle and modification all should belong to the scope of protection of the invention.
Claims (10)
1. the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of an energy loading stress is characterized in that, the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of described energy loading stress comprises:
Autoclave pressure, described autoclave pressure has inner chamber, is provided with test specimen in the described inner chamber;
Stretching test system is installed in the two ends of described test specimen, and the pulling force and the strain signal of described test specimen are tested and obtained to the described test specimen that stretches;
Solution circulation gas charging system is connected with the inner chamber of described autoclave pressure, provides experiment required solution to described autoclave pressure;
The acoustic emission probe is arranged on described test specimen two ends, tests the acoustic signal of described test specimen;
The electro-chemical test system is connected with described autoclave pressure with test specimen, described test specimen is applied polarization current polarize and test and obtain electrochemical signals;
Data acquisition unit is gathered simultaneously-measured pulling force and strain signal, electrochemical signals and acoustic emission signal.
2. the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress as claimed in claim 1, it is characterized in that, the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of described energy loading stress also comprises: computer, be connected with data acquisition unit, and described computer is connected with described stretching test system, described computer is controlled the stretching of described stretching test system to described test specimen according to the pulling force and the strain signal that obtain.
3. the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress as claimed in claim 1, it is characterized in that, described autoclave pressure comprises: kettle, with the kettle cover that is arranged on the described kettle, described kettle cover is provided with the mounting hole that described test specimen is installed, described mounting hole is provided with the test specimen O-ring seal of the described kettle cover of sealing and is pressed on gland on the test specimen O-ring seal, described stretching test system comprises: the chuck at the described test specimen of clamping two ends, described chuck contacts with described test specimen by liner, described kettle, described kettle cover, described gland, described test specimen O-ring seal, and the liner of described chuck all adopts fiberglass.
4. the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress as claimed in claim 1 is characterized in that, described acoustic emission probe contacts with the end face of test specimen by couplant.
5. the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress as claimed in claim 2, it is characterized in that described stretching test system also comprises: motor is connected with described chuck; Servo controller connects described motor and described computer, and described computer is controlled described servo controller according to the pulling force and the strain signal that obtain, thus the start and stop and the rotating speed of control control motor, and control is to the stretching of described test specimen.
6. the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress as claimed in claim 1, it is characterized in that, described electro-chemical test system comprises: be connected working electrode, auxiliary electrode and the silver/silver chloride contrast electrode on the described autoclave pressure, described working electrode is described test specimen.
7. the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress as claimed in claim 3, it is characterized in that, the two ends of described test specimen are respectively equipped with the test specimen head that is threaded with described test specimen, described test specimen headgear is located at the two ends of described test specimen, and described chuck is held described test specimen by the described test specimen head-clamp of clamping.
8. the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress as claimed in claim 1 is characterized in that described acoustic emission probe sheath is located in the plastic whorl circle and is installed on the described stretching test system.
9. the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress as claimed in claim 1 is characterized in that, it is 20～150 ℃ that described solution circulation gas charging system provides the temperature of the required solution of experiment to described autoclave pressure, and pressure is 1～16MPa.
10. the High Temperature High Pressure acoustic emission galvanochemistry analogue experiment installation of energy loading stress as claimed in claim 5, it is characterized in that, described stretching test system also comprises: the gear pair that is connected with described motor, described stretching test system is by the motion of described Electric Machine Control gear pair, realization loads constant load, constant strain or the dynamic loading of described test specimen, to obtain the required stress condition of experiment.
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| CN115468904A (en) * | 2022-09-20 | 2022-12-13 | 中国石油大学(华东) | High pressure dense phase CO 2 In-situ electrochemical and corrosion testing device and method in wet environment |
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